longenecker



June 24 1930. c LONGENECKER ,7689 3 PORTABLE PUMP Filed Dec, 7; 1929 2$h0ets$he ot 1 'miz l- 26 iNVENTOR n i Q l LIMSTZLOWGJBI;

B ATTORNEY June 24, 1930. c. l. LONGENECKER PORTABLE PUMP Filed Dec. '7,1929 2 Sheets -Sheat 2 INVENTOR CfiaaZLorgenecler;

' ATTORNEY Patented June 24, 1930 UNITED STATES PATENT OFFICE.

CHARLES I. LONG-ENEGKER, 0F MILWAUKEE, WISCONSIN, ASSIGNOR 'I'O CHAINBELT COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSINPORTABLE PUMP Application filed December 7, 1929. Serial No. 412,552.

This invention relates to portable pumps and has for one of its objectsto provide an apparatus of this character which will be simple inconstruction, comparatively inexpensive to manufacture and moreefficient in'use than those which have been heretofore proposed.

The invention relates more particularly to pumps of the diaphragm typewherein the pump casing is separable to facilitate the replacement ofthe .diaphragms when they become worn and it is a further object of theinvention to provide a readily portable pumping unit of this type inwhich the replacement of said diaphragms 1s further facilitated.

With the above and other objects in view which will appear as thedescription proceeds the invention consists in the novel details ofconstruction and combinations and arrangements of parts more fullyhereinafter described and particularly pointed out in the appendedclaims.

Referring to the accompanying drawings forming a part of thisspecification in which like reference characters designate like parts inall of the views V Figure 1 is a side elevational View of a portablepumping unit constructed in accordance with the present invention, theparts being shown in the positions they assume when a diaphragm is to bechanged;

Figure 2 is a front elevational view of the unit with the parts shown intheir normal or operating positions;

Figure 3 is a detail perspective view of the supporting frame for thepump unit;

Figure 4 is a top plan view of the frame shown in Figure 3;

Figure 5 is a side elevational view of the parts shown in Figure 4;

Figure 6 is a detail perspectlve new of the supporting axle and thebrackets therefor, together with the ground-engaging member of theframe; and

Figure 7 is an enlarged fragmentary, sectional elevational view showingthe method of attachment of the ground-engaging member to the axle, andof the axle supporting bracket to the frame member.

In the said'drawings the numeral 10 indicates generally a supportingframe for the pump unit which, as will be clear from Figs. 3, 4 and5,-comprises a pair of parallel spaced Z-bars 11 which are connectedtogether by a centrally located transverse Z-bar 12which may be weldedor otherwise suitably secured to the longitudinal'members 11. Adjacentone end of each of the longitudinal members there is secured an anglebracket 13, through the downwardly dependent leg 14 of which a shaft oraxle 15 extends. The brackets 13 are preferably stamped from sheet metalof suitable thickness and maybe welded to the axle 15 at the points ofintersection, as indicated at 16.

The projecting ends of the axle 15 carry ground-engaging wheels 17 whichserve to support the unit while permitting it to be readily transportedfrom place to place as will be readily understood.

Rotatably mounted upon the aXle 15 intermediate the brackets 13 is asleeve 20 which is held against longitudinal movement upon the axle byany suitable means, such for example, as the cotter pins 21 shown inFigs. 6 and 7. Rigidly secured to the said sleeve 20 as by welding is aforwardly extending ground-engaging member 22, the extreme end 23 ofwhich is preferably bent downwardly and has secured to it an anglemember 24 which serves to reinforce the member 22, and provides arelatively broad foot therefor.

Mounted upon the forwardly extending ground-engaging member 22 is alower section 25 of the casing of a diaphragm pump of well knownconstruction. This casing section usually constitutes the inlet chamberupon the frame 10, as is also the actuating means for the pump. Theactuating means may comprise a reciprocating connecting rod 29, theupper end of which is carried by crank 30 of the shaft 31, which shaftcarries at one end a gear wheel 32 meshing with a pinion 33 which islikewise mounted npon the frame 10 as will be clear from Fig. 1.

- The casing sections 27 and 25 are normally held together by means ofbolts 36 and the nuts thereon which provide a readily detachableconnection between the separable sections.

The parts are so designed, constructed and assembled that in the normalor operating position of the unit the center of gravity of the entireassembly lies to the left of the supporting axle 15, as viewed in Fig. 1so that the device will be stable under operating conditions. In thiscondition it 'may be readily transported from place to place upon thewheels 17 by simply llfting the said end to raise the ground-engagingfoot 24 off the ground as will be readily understood.

Should the diaphragm 28 become worn or otherwise defective,necessitating replacement thereof, the nuts on the bolts 36 are removedthereby permitting the separation of the members 25 and 27 which isaccomlished by raising the forward end of the rame l0 throughthe mediumof the handle 38, which tilts the upper portion of the pump, the motor 35 and the frame 10 upon the axis of the axle 15. The forwardly extendingmember 22 together with the lower casing member 25 remain in normalhorizontal position as shown in Fig. 1. During such movement the centerof gravity of the portion of the assembly constituted by the frame 10,the upper elements of the pump and the motor 35 is shifted from the leftto the right of the axle 15, thereby producing a torque tending tocontinue the tilting of these members in a clockwise direction as viewedin Figure 1. In order to restrain this tilting movement, a suitableconnection, here shown as a chain a0, is provided between the frame 10and the ground-engaging member 22 so that when the parts reach thepositions shown in Fig. 1 they will be maintained therein, thus makingthe replacement of the diaphragm 28 a comparativelysimple matter. Itwill be understood that although the center of gravity of the uppertilting ortion of the apparatus is shifted from the eftto the right ofthe axle 15, the center of gravity of the entire apparatus at all timesremains to the left of the axle 15 whereby the unit is prevented fromtipping over entirely. In other words, the weight of the lower casingmember 25 and its associated parts is suflicient to overcome thecontinued tendency of the upper movable parts to tilt and to maintainthe entire device in the position shown in Fig. 1.

lVhile one form of the invention has been described and illustrated itis obvious that those skilled in the art may vary the details ofconstruction as well as the precise arrangement of parts, withoutdeparting from the spirit of the invention and therefore it is notwished to be limited to the above disclosure except as may be requiredby the claims.

What is claimed is:

1. In a portable pumping unit, a supporting frame comprising a pair ofpivotally connected members; and a pump carried by said frame having aseparable casing, a part of said casing being carried by each of saidframe members.

2. In a portable pumping unit, a supporting frame comprising a pair ofpivotally connected members; a pump carried by said frame having atwo-part separable casing, each of said parts being carried by one ofsaid frame members; and means for limiting pivotal movement of saidmembers relative to one another.

3. In a portable pumping unit, a wheeled supporting frame including apair of members and a wheel carrying axle constituting a pivotalconnection between said members; and a pump carried by said frame havinga separable casing, one part of which is carried by one frame member andthe other part of which is carried by the other frame member.

4:- In a portable pumping unit, a wheeled supporting frame including apair of members and a wheel carrying axle constituting a pivotalconnection between said members; a pump and driving means thereformounted on said frame, said pump having a two part separable casing, onepart of which is carried by one frame member; and the other part ofwhich is carried by the other frame member; and connections between saidmembers for limiting pivotal movement of said one member relative to theother.

5. In a portable pumping unit, a supporting frame comprising a pair ofpivotally connected members; a pump carried by said frame having aseparable casing, one section of which is carried by one frame memberand the other section of which is carried by the other frame member, theparts being so arranged that the center of gravity of one portion of theassembly may be shifted from one side to the other of the pivotalconnection through the tilting of one frame member, while the center ofgravity of the entire assembly always remains upon one side of saidconnection; and means for limiting the tilting movement of said memberrelative to the other member, whereby the pump casing may be held inseparated readily accessible position.

tion carried by said last named member; a

second pump section and pump actuating means carried by the first namedframe memher; and means for limiting tilting movements of said firstnamed member and the parts carried thereby relative to said gr0undengaging member.

In testimony whereof I afiix my signature.

CHARLES I. LON GENEGKER.

